Hose coupling



0. s. KELLEY- HOSE COUPLING March 24, 1931.

Filed Sept. 26, 1927 INVENTOR CECIL S. KELLEY ATTORNEY Patented Mar. 24,1931; r

A UNITED STATES CECIL s. KELLEY, or EAST MCKEESPORT, PENNSYLVANIA, Awesme HOUSE AIR BRAKE COMPANY, on wILMERDINa, PENNSYLVANIA, A, conronnrronOF PENNSYLVANIA Application filed. September 26,

This invention relates to hose couplings of the type employed to connectthe ends of a train pipe between cars of a train.

The railway type of hand operated hose ri coupling is provided with alateral opening having a" gasket, an arcuate rib, and

an angular arm having a groove, in which the r1b ofra counterpartcoupling 1s adapted to'engage upon relative rotative h) movement of thecoupling heads.

I It sometimes occurs that in coupling, the

heads may bebrought together in such a way that the gasketsof thecounterpart coupling heads engage before they are in axial aline- 15ment and then'as the heads are moved into alinement, the gaskets aredistorted and re- .main so inthe final coupled position, sothat thelateral opening area is reducedrby the voverlapping of the gaskets andleakage is zo'liableto occur, by reason of thedistortionjof the gaskets.

' The principal object of my inventlon is to provide a hose couplingheadrof the above" type, in which means are provided for pre- 95 ventingengagement of the gaskets of counterpart coupling heads until byrelative rotative movement of the heads, the gaskets are brought 'into-axial alinement, through engagement of the locking rib of one head sowith the groove of-the other head.

In the accompanying drawing: 1, is

an end View of a hose coupling'embodying my invention; Fig. 2 a faceview thereof;

Fig. 3 a view of two coupling heads in posi 533 .tion before the rib ofone head engages the grooveof the; other head; and Fig. 4a view of twocoupling heads in position after the rib of one-head engagesthe'grooveof the other head.

The coupling head comprises a body 1 having a lateral openingprovidediwith the usual gasket 2 adapted to engage the correspondinggasket of a counterpart coupling whenthe couplings are interlocked.

' For lock ingthec'ouplings together, the'coupling head is provided withan arcuate rib 3 which is'formed on a pro ecting flange 4 at one side ofthe lateraliopenlng and concentric therewith.

I i On other side of the openingthere'is an name. 221,923;

angular 6n; the inner faceof which-is formedjan arc uategroove6"concentr1'c with the 'lat eral'opening and adaptedto receive the rib 3jwhen' counterpart couplings are placed together, with the lateraliopenings in al inement, and are."relativelyrotated,

, Accordingto my invent1on',"there is provided Tat one en djof theflange l oppositefto 'thelribj3, a' lug 7 having a vertical facfe'S andan inclined face 9 At the opposite's ide of thelateral "openitheicoupling is'provided with a raised portion 10 and. a raised portion11, the faceof which is at ajlower level than the face fof thefport-ion10,2 the facesbein'gconnect'ed by an inclined face' 12. i The inclinedface 12 is disposed substantially on the same diameterline, passingthrough the axis of the lateral opei1ing,.as the edge 13 of the lug 7.When counterpart coupling heads are applied togetlier, with the. lateralopenings in alinement, the edge 13 of one coupling head willeiigagetheraised portion 10 of the counterpart co upling head, in any relative'aingular positionat whichthe heads may beapplied. as shown in 3. As willbeclearly apparent, the engagementof the edge 13 of one head upontheraised portion 10 of the other head prevents the counterpartgaskets 2from ongaging. After a sufficient relative rotation of Q i the couplingheadstocause the rib 3 of one head to enter into the groove 6 ofthe'other head, the edge 13-ismoved oil. the raisedpor- I A tion 10tothe raised-portion 11.

This movement permits the movementol A the gaskets 211nto engagement,but d11I'111g' the movement, the rib 3 of one head is ineligagement withthe groove 6 of'the other head, so that the gaskets Q'are guided inaxialaline- I ment, whilethegaskets arebeing brought into engagementFurther relative rotative movement of the coupling heads causes theclamping together ofthe headsa-n'd the. compression of the gaskets 2 soas to efiect a leak tight 3 coupling of this type. I

' my hand Preferably the entering portion of the groove 6 is flaredoutwardly, as shown at 14, to facilitate the initial engagement of therib 3 in the groove 6.

While one illustrative embodiment of the inventionzhastbeen describedinndetail, it .is not my-intention to limit its scop e toithatyembodiment or otherwise than by the terms of the appended claims.i

1 Having nowdescribed iny-invention,- what- Iclainr as new anddesire-tosecure by: Let

ters Patent, is

1. A pipe coupling head having a l'ateral opening provided with agasket, means associated with the coupling head 'for"interlocking,countenpart coupling, headsfupon relative rotative movementof the heads,and Qmeans for, preventing engagement; of .r the: counterpart gasketswitheach other during the initial rotativev movement of. the heads anduntil the interlocking actioniisinitiateds 2r Thecombruationlwith twohose coupling heads each. having.a latera1 op en ngprovided with avgasket, a vcurved 1 I113) and a1 curved 'groqve,theribofone head beingadapted to engage; the groove of. the 7 other head I uponrelativerotatii e movement of the heads, a lugg anda raisedliportion carried byeach head, thelug of zonethead being, adapted to engage K thesraisediportion, ofmthev other end during the initi a1 .rotativemovement 7 of said heads, to therebyainitially: prevent enga ementc ofthe-gaskets with each other, said ugs moving, out of, engagement with.said vraisedportionswuponaengagement of. ahrib of one head \vith'thergroove, of the: other head.

. In vtestimony whereof I have -hereunto set CECIL s. KELLEY.

